Drill attachment.



RQA. BROWN &"J. FITTINGS.- DRILL ATTACHMENT.

APPLICATION FILED MAR. 31, 1910.

977,267. Patented N0v.29, 1910.

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UNITED STATES PATEN QFFTCE.

ROBERT A. BROWN AND JOHN FITTINGS, OF ANTLER, NORTH DAKOTA.

DRILL ATTACHMENT.

Specification of Letters Patent.

Application filed March 31, 1910.

Patented Nov. 29, 1910. Serial No. 552,567.

T all whom it may concern:

Be it known that we, ROBERT A. BROWN and JOHN FITTINGS, citizens of theUnited States, residing at Antler, in the county of Bottineau and Stateof North Dakota, have invented certain new and useful Improvements inDrill Attachments, of which the following is a specification, referencebeing had to the accompanying drawings.

This invention relates to certain new and useful improvements in graindrill attachments and has for its object to provide a simple andefficient device whereby the seed after being deposited may be coveredwith the soil.

Another object is to provide an attachment for planters or grain drillscomprislng a frame carrying a plurality of soil engaging teeth, andmeans whereby said teeth may be adjusted in the frame to an inoperativeor operative position.

A further object resides in the provision of a device of the abovecharacter which is strong and durable in construction, is capable ofattachment to any of the various forms of drills or planters and may beproduced at a low cost.

lVith these and other objects in view, the invention consists of thenovel features of construction and the combination and arrangement ofparts hereinafter fully described and claimed, and illustrated in theaccompanying drawings, in which- Figure 1 is a side elevation of a grain.drill illustrating the application of our attachment thereto; Fig. 2 isa top plan view of the attachment removed; Fig. 3 is an enlarged sectiontaken on the line 33 of Fig. 2; Fig. 4: is a section taken on the linet4 of Fig. 2; and Fig. 5 is a view similar to Fig. 3 showing the teethraised or in inoperative position.

Referring more particularly to the drawings 5 indicates a drill orplanting machine which may be of any approved form and comprises a grainbox 6 mounted upon the wheel axle 7 said axle having the ground wheels-8secured to its ends in the usual manner. 7

Our improved attachment consists of the parallel teeth carrying bars 9,each of which comprises the spaced plates 10, said plates havingarranged between them a plurality of blocks 11. Between the ends ofadjacent blocks, the earth engaging teeth 12 are arranged, said blocksand the teeth being secured between the plates by means of the bolts oranalogous fastening devices 13.

The teeth carrying bars 9 are connected at one side of their center bymeans of an elongated frame 14. This frame is in the form of aparallelogram and the bars thereof are pivotally connected, as shown at16. The vertical end bars of the frame 14: are rigidly secured to thespaced plates 10 between which the teeth 12 are arranged. A longitudinalbar 17 is disposed adjacent to the frame 14 and has a bearing 18 securedto each end thereof. In these bearings 18, the teeth carrying bars 9 aremounted and are adapted to be rotated to elevate the teeth above theground surface. This bar is centrally formed with a depending lug 19upon which an adjusting lever 20 is pivoted. The pivot point 20 of thislever is in the same longitudinal plane as the bearings 18. The lever 20is also pivotally connected upon opposite sides of the bar with theupper and lower longitudinal frame bars 15, as clearly shown in Fig. 3.A rack segment 21 is carried by the bar 17 and is traversed by the lever20, said lever carrying the usual spring controlled pawl 22 forengagement with the teeth of said segment. The lever 20 is ofsubstantially L-shaped form and extends forwardly to a position adjacentto the drivers seat so that it may be readily grasped and manipulated.The ends of the parallel teeth carrying bars 9 are supported by means ofthe rods or bars 23 which extend forwardly t0 the wheel axle 7 Theforward ends of these rods are provided with the sleeves or bearings 24which are disposed upon the axle said sleeves being freely movablethereon. hains 25 have their lower ends connected to the rods 23 and thegrain box 6 is provided with hooks with which the links of the chain areadapted to engage whereby the teeth carrying bars may be raised orlowered as desired.

When it is desired to elevate the teeth 12 out of engagement with thesoil, the operator grasps the lever 20 and pulls the same forwardly.Upon this forward movement of the lever the elongated frame 14- will befolded or collapsed, as shown in Fig. 5, and as the ends of said frameare rigidly connected to the teeth carrying bars it will be obvious thatthe teeth will be elevated, said frame bars being disposed at an anglebetween the ends of the parallel longitudinal bars of said frame. Whileany desired form of cultivator teeth may be utilized in carrying out ourinvention, we preferably form the same from resilient bars of steel,said teeth tapering at a point at their extremities. It will be notedupon reference to Fig. 2 that the teeth carried by the bars 9 arestaggered, or in other words, the teeth carried by one of said bars aredisposed in a plane between the teeth carried by the other bar wherebythe soil will be thoroughly disturbed to insure the covering of the seedwhich have been previously deposited by the drill. The earth is alsoloosened and pulverized by the teeth as the machine moves over theground, which will insure a larger crop from the amount of seed planted.The chains 25 are given suflicient slack to compensate for theunevenness of the ground surface, and by adjusting the teeth they may becaused to enter the soil to any desired depth.

From the foregoing it is believed that the construction and operation ofour improved drill attachment will be readily understood withoutrequiring any further description. The device is extremely simple and iscapa ble of use in connection with any of the various forms of seeddrills or planters. The use of drag chains which is the means commonlyemployed for covering the seed is entirely eliminated, and a deviceprovided which will more efliciently effect this purpose with but slightadditional expense. The proportions of the device may be altered asdesired to adapt the same for use in connection with drills of anycapacity. Some machines of this character are provided with twenty orthirty seed directing chutes. The attachment is also susceptible of agreat many other minor modifications without materially departing fromthe essential features or sacrificing any of the advantages thereof.

Having thus described the invention what is claimed is:

1. A drill attachment of the character de scribed comprising parallelteeth carrying bars, rods connecting said bars adjacent to their ends,an elongated frame connecting the bars at their centers, said frameconsisting of parallel longitudinal bars and con necting bars pivoted tothe ends of said longitudinal bars, a longitudinal bar having bearingsthereon to receive the teeth carrying bars, the longitudinal bars of theframe being disposed upon opposite sides of said last named bar, theconnecting rods of said frame being rigidly secured upon the teethcarrying bars intermediate of their ends, an ear depending from said.bar, and an operating lever pivoted to each of said longitudinal framebars and to said ear centrally betweeen said frame bars, said leverbeing adapted to collapse said frame and rotate the teeth carrying barsto elevate the teeth.

2. A drill attachment comprising parallel teeth carrying bars, rodsconnecting said bars adjacent to their ends adapted for attachment tothe axle of the drill, a collapsible frame connecting said bars adjacentto their centers, a longitudinal bar having a bearing secured to each ofits ends to receive the teeth carrying bars, and a lever mounted uponsaid longitudinal bar and connected to the frame adapted to adjust thesame and rotate the bars in said hearings to elevate the teeth to aninoperative position.

3. A grain drill attachment comprising a plurality of teeth carryingbars, rods connecting said bars adjacent to their ends and looselymounted upon the drill axle, an elongated rectangular frame connectingthe teeth carrying bars, the ends of the frame bars being pivotallyconnected, a longitudinal bar having bearings arranged thereon toreceive the teeth carrying bars, and an operating lever pivotallyconnecting said longitudinal bar and the frame bars, the adjustment ofsaid lever being adapted to collapse said frame and rotate the teethcarrying bars to elevate the teeth.

at. A drill attachment of the character de scribed comprising parallelteeth carrying bars, rods connecting said bars to the drill shaft, saidbars being rotatably carried by the rods, a collapsible frame connectingsaid bars adjacent to their centers, a longitudinal bar arrangedadjacent to said frame having bearings secured thereto to receive theteeth carrying bars, a rack segment secured on said longitudinal bar,and an adjusting lever pivoted to said longitudinal bar and the framebars, the adjustment of said lever being adapted to collapse the frameand rotate the teeth carrying bars in their bearings to elevate theteeth to an inoperative positi'on.

In testimony whereof we hereunto affix our signatures in the presence oftwo \vit nesses.

ROBERT A. BROWN. JOHN PTTTTNGS. Witnesses J. R. PATTERSON, C. J. SMITH.

